Coustic 160SE Owner's Manual page 8

Two channel power amplifier
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RCA
A
outputs
OPTION 1 -RCA Outputs
B
CD-328
PWR
EJECT
II
+
MODE
LOUD
MUTE
LOUD
P.CL
SEL
BAND
ASM
MONO
SHUF
RPT
SCAN
EAS
P.ME
P.PLA
DISC
REL
TUNE
1
2
3
4
5
6
DISP
WB
CD527 CD/RECEIVER
and CD CHANGER CONTROL
OPTION 2 -Speaker lead Outputs
(Note: You cannot use both RCA and
speaker lead inputs simultaneously!!)
A.S.
TRACK
SEEK
1
D.
SCAN
2
FRONT
speaker lead
Anybody's leased car: high power In dash
outputs
option 2
160SE
POWER AMPLIFIER
FRONT speaker
(crossover set at 80Hz)
lead Inputs
LoZ
option 1
FRONT RCA
lead Inputs
HiZ
400SE
POWER AMPLIFIER
(crossover set at 80Hz)
Figure 12. Typical multi-amplifier system
14
Battery
®
+
RX-779
MODE
POWER
Auto Aligned
CD Changer Control
Azimuth System
DOLBY B
P.C
RESE
L
BAN
DIS
T
PRO
P.ME
DIS
D
P
M
C
G
AS
LOU
TUNE
M
D
TP
70
SHUFF D.SCAN DISC D.RPT
70 s TPS
TRACK
ME
AM FM 1 2
S
S
3
SHUFF
3
T.
4
T. SCAN
5
D. RPT
6
P. PLAY
ST
RPT
LOUD
+
HS-652a
6 1/2 inch Co-Axial
+
A
B
10RS
10" SUBWOOFERS
+
A
B
SYMPTOM
1
No power
B
2. Power without sound with
red power/protection
indicator on
3. Power without sound with
red power indicator on
4. No sound from one side
5. Very low sound from
both radio & tape
6. Frequent automatic amplifier
shut down
7. "Motorboating": The amplifier
power indicator going off
repeatedly when the audio
system is on.
T RO U B L E - S H O OT I N G S E C T I O N
PROBABLE CAUSE
Check connections to the amplifier's Ground, B+ & Remote
terminals. Check connection at "+" terminal of the battery.
Check the remote turn-on terminal. Ensure it receives power
when the source is turned on (or when the switch is turned
on). Refer to the Installation Section. Check the power line
fuse: if fuse is blown, replace it; if fuse continues to blow,
check the power wire and also the amplifier for a short. If the
short is in the power wire, fix it; if the short is in the amplifier
itself, see your Coustic dealer.
Check the voltage at the amplifier, and the remote ON/OFF
lead. The voltage should measure between 11 V-15V. If the
measurement is beyond this range, have the source unit
checked out by an authorized dealer.
Turn the amplifier off, and Check all input & output signal
cables and connections. Check the speakers for short with a
VOM or by connecting them to another audio system. After
making sure everything is normal, turn the amplifier on again.
The continuous red light of the power indicator signals a high
internal operating temperature, which results in the amplifier
switching off temporarily; when the amplifier cools down to a
safe level, the amp will automatically restart.
Check balance control.
Check speaker connections.
Check signal input connection.
Check your radio's fader control.
Check the amplifier's Input Sensitivity Level.
This indicates that the amplifier is operating at a continually
undesirable high internal temperature.
High operating temperature caused by inadequate ventilation.
(Refer to the sub-section titled LOCATION for better amplifier
location).
High operating temperature caused by an excessively low
impedance load, say below 2 ohms. Check for bad speakers
and/or electronic crossover, proper passive crossover
components; if all else fails, try rewiring the entire system.
High operating temperature can be caused by an incorrect
input sensitivity level (refer to sub-section titled INPUT
SENSITIVITY ADJUSTMENTS for correct setting).
Check the amplifier's connection to the battery.
Check battery voltage. If low, recharge or replace battery.
Check all ground connections.
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